> How would I know in advance that this gives Å and not Æ or à or Ā or  or À or Á or Ä? The same way you know in advance that CTRL+SHIFT+@ gives you Å in Wind

> How would I know in advance that this gives Å and not Æ or à or Ā or  or À or Á or Ä? The same way you know in advance that CTRL+SHIFT+@ gives you Å in Windows? Both Windows and Mac can display an on-screen keyboard that will display the character that will be output if you press a key along with modifier keys like CTRL or Option.